EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2022-06-29 11:0054.38.75.2736.729.417.1
2022-06-29 10:0050.56.85.7734.319.011.4
2022-06-29 09:0055.74.26.5705.417.010.8
2022-06-29 08:0050.03.37.0592.517.19.6
2022-06-29 07:0029.29.83.2391.119.611.6
2022-06-29 06:0039.36.24.7631.912.68.4
2022-06-29 05:0027.312.93.3400.58.05.7
2022-06-29 04:0030.116.23.3401.412.73.2
2022-06-29 03:0025.521.83.4392.84.04.0
2022-06-29 02:0027.626.93.5451.711.910.0
2022-06-29 01:0047.412.74.9555.315.512.8
2022-06-29 00:0043.913.05.1555.717.711.7
2022-06-28 23:0054.65.95.3517.620.315.0
2022-06-28 22:0060.78.25.9648.325.216.5
2022-06-28 21:0066.45.86.7778.427.817.7
2022-06-28 20:0072.79.26.3790.826.417.8
2022-06-28 19:0093.67.18.1679.625.716.9
2022-06-28 18:0088.711.97.3654.824.816.2
2022-06-28 17:0063.112.56.9574.822.213.8
2022-06-28 16:0066.711.56.9628.723.613.5
2022-06-28 15:0073.611.97.2533.129.416.3
2022-06-28 14:0087.08.38.9668.229.717.8
2022-06-28 13:0077.45.511.8859.122.814.0
2022-06-28 12:0086.34.810.7723.723.014.8
Remarks:

(1) Time shown is in Hong Kong time.

(2) NO2 - nitrogen dioxide, O3 - ozone,
     SO2 - sulphur dioxide, CO - carbon monoxide,
     PM10 - respirable suspended particulates,
     PM2.5 - fine suspended particulates

(3) Concentration shown is in µg/m3.

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.